Direct OEM Genuine
Multi-Model Compatibility
Heavy-Duty Mining Grade
Serial Verification Available
Worldwide Shipping
Title
Caterpillar 8D-4400 Gear | Fits 627B, 621E, 621B, 623B Excavators
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Opening Paragraph
The Caterpillar 8D-4400 Gear is a precision-engineered OEM replacement component designed for 627B, 621E, 621B, and 623B excavators operating in Wheel Tractor-scraper and heavy construction environments. Built for structural durability and exact fitment, this gear supports critical assemblies to ensure reliable performance and reduced downtime.
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Common Applications
This Caterpillar 8D-4400 gear is essential for:
Professional maintenance of CAT excavators.
Direct replacement of worn structural and pivot components.
Heavy-duty Wheel Tractor-scraper and earthmoving operations.
Maintaining proper alignment in equipment linkage systems.
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Fits The Following Models
CAT 627B Excavator
CAT 621E Excavator
CAT 621B Excavator
CAT 623B Excavator
CAT 621K Excavator
(Verify fitment with your specific serial number.)
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OEM Reference
Part Number: 8D-4400
Brand: Caterpillar
Category: Wheel Tractor-scraper
Machine Type: Hydraulic Excavator
Condition: OEM / Genuine-Style Replacement
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Product Details and Availability
In Stock (if confirmed).
Global Shipping Available.
Serial Number Verification Support.
Request Fast Quote for Current Market Pricing.
Access full technical specifications and availability here:
https://allparts.expert/parts/mining/cat-627b-gear-8d4400-caterpillar-8d-4400-mining/
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